2004 Hummer H1 Convertible One-of-a-kind on 2040-cars

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Mil-Spec built a one-off, track-ready Hummer H1

Mil-Spec is one of the latest companies looking for success with restored and modified versions of iconic vehicles. Rather than Porsche 911s or '60s trucks and SUVs, its canvases are Hummer H1s. The customer vehicles are big, brash off-road machines, but that's not all the company is capable of. We recently learned that the crew over there built a Hummer H1 meant for race track use, and it is amazing. The base vehicle is a four-door convertible pickup truck, and Mil-Spec thoroughly changed the suspension. It has custom coilovers with stiff springs, and the entire suspension geometry has been revised. Overall, it was lowered a stunning seven inches compared with a stock H1. The H1's in-board brakes now feature six-piston brake calipers, and the wheels are wrapped in low-profile Pirelli P-Zero tires. Also impressive is the fact that the truck still has a part-time four-wheel-drive system. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Under the hood is a 6.6-liter Duramax diesel V8 similar to that in the customer models. But this one has been tuned all the way up to 800 horsepower and 1,500 pound-feet of torque. This engine also plays a role in this truck's origins. Apparently the truck was used for final powertrain testing and development. But it was also built to highlight the company's capabilities. If you want one of these, well, you can't have one. At least not yet. We asked a Mil-Spec representative, and he told us that there are no plans for offering track-oriented H1s. That's understandable, since the company is still working through building and selling its initial run of 12 off-road-ready vehicles. He did say the truck has generated a lot of interest, though. So, maybe when the company has time, and if a really wealthy buyer really wanted one, maybe the Mil-Spec could work something out. But at least in the meantime, the company is sticking to tall, chunky-tired H1s. Related Video:

GMC Hummer EV coming to Extreme E with Chip Ganassi Racing

The electric off-road racing series Extreme E is getting another famous face. This time it's not a person, but rather a vehicle: the GMC Hummer EV. GMC announced that it will be the main sponsor for the Chip Ganassi Racing Extreme E team. With the sponsorship, GMC gets to tweak the Extreme E Odyssey 21 race SUV to look more like the Hummer EV pickup and SUV that starts production late this year. The changes are subtle but effective, with the nose getting a full-width light-bar motif. Of course the race SUV is vastly more rounded than the road-going truck. It also features a standardized chassis from Spark Racing and a battery pack from Williams. The team is able to provide its own electric motor, though, which the series limits to 550 horsepower. The GMC Hummer EV race SUV will make its competition debut alongside several other pedigree teams at the first Extreme E event in Saudi Arabia this April. Three teams are operated by Formula One drivers including Sir Lewis Hamilton, Nico Rosberg and Jenson Button, the latter of whom will be driving. Andretti United will also field a team, a familiar competitor to Chip Ganassi in other racing series such as IndyCar. As for drivers, two World Rally Championship champions will compete: Carlos Sainz and nine-time consecutive champion Sebastien Loeb. The series will feature five races and with the way the competition is shaping up, they should be very interesting to watch. Related video:

SEMA 2010: Zero South Biodiesel Electric Hummer shows its guts

Zero South Biodiesel Electric Hummer - Click above for high-res image gallery
Zero South, a company that popped up at SEMA in 2008, is back again with its Biodiesel Electric Hummer. The heavily modified H1 rides on tracks at all four corners - a necessary modification, since this Hummer is designed for an expedition to the South Pole.
The trip is going to be documented by Chris Paine, who's best known for the film Who Killed the Electric Car? It was reported back in 2008 that the vehicle was going to be driven by Buzz Aldrin and Apple co-founder Steve Wozniak. The film is called Drive Around the World and was shot in 3D. Drive Around the World is also the name of an organization that works to inspire an urge to explore while raising money for various charities. The H1 shown above is Zero South's vehicle for participating in these expeditions.